linux-kernel - Re: Disable CF during suspend

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Message-ID: <1305988078.5824.14.camel@utx.lan>
Date:	Sat, 21 May 2011 16:27:58 +0200
From:	Stanislav Brabec <utx@...guin.cz>
To:	Pavel Machek <pavel@....cz>
Cc:	rpurdie@...ys.net, lenz@...wisc.edu,
	kernel list <linux-kernel@...r.kernel.org>, arminlitzel@....de,
	Cyril Hrubis <metan@....cz>, thommycheck@...il.com,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	dbaryshkov@...il.com, omegamoon@...il.com, eric.y.miao@...il.com,
	zaurus-devel@...ts.linuxtogo.org,
	Marek Vasut <marek.vasut@...il.com>
Subject: Re: Disable CF during suspend

Pavel Machek wrote:
> Disable SPITZ_SCP_CF_POWER during suspend. Otherwise it eats battery,
> fast. Thanks to Stanislav Brabec.

If you can verify that your card turns off on suspend, then you have my:
Acked-by: Stanislav Brabec <utx@...guin.cz>

But I would line to see more aggressive power control, something like
spitz_card_pwr_ctrl() in old kernels - if there is no CF and no
(external) CF card inserted, then SPITZ_SCP_CF_POWER card be turned off.
If they are memory cards, they can be turned off even while idle.

-- 

________________________________________________________________________
Stanislav Brabec
http://www.penguin.cz/~utx, ICQ 116020046, xmpp:utx@...ber.cz

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